B0:1F:81:F Private
Every MAC address from B0:1F:81:F0:00:00 to B0:1F:81:FF:FF:FF belongs to a block the IEEE assigned to Private. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who B0:1F:81:F belongs to
Written B0:1F:81:F, B0-1F-81-F or B01F81F, depending on the system. Look up a full address.
Prefix
B0:1F:81:F/28
Organization
Private
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
B0:1F:81:F0:00:00
Last address
B0:1F:81:FF:FF:FF
Address type
Globally unique, unicast
Parent block
Inside B0:1F:81
This MA-M block is carved from the 24-bit block B0:1F:81, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.